<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<style type="text/css">
			.item{
				width: 200px;height: 300px;
				
				margin: 0 auto;
				
				opacity: 0.5;
			}
		</style>
	</head>
		
	</body>
</html>